Blast-generator



N.PETER3, PHOTO-LITHOGRAPHER WASHINGTON D C UNITED STATES PATENT OFFICE.

CEAS. C. LLOYD, OF PHILADELPHIA, PENNSYLVANIA.

BLAST-GENERATOR.

Specification of Letters Patent No. 6,341, dated April 17, 1849.

To all 1li/omit may concern Be it known that I, CHARLES C. LLOYD, ofPhiladelphia, in the county ot' Philadelphia and State of Pennsylvania,have invented a new and useful Improvement on Rotary Blast-Generators;and I do hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure l is a longitudinal elevation, Fig. 2 an end view withdrum-head a detached, Fig. 3 a sectional view, Figs. t and 5 the conductpipe with elbow in different positions, Fig. 6 a perspective View.

The nature of my improvement consists in providing drum-heads at theextremes of the machine, for the purpose of confining the water orotherfluid within the samethus superseding the necessity of a separatereservoir to contain the flinch-and in so arranging a valve orslip-joint at the end of the inner cylinder, which, while it preventsthe compressed air from returning through the same, freely admits thewater or other fluid to circulate from one extreme of the machine to theother.

I will now proceed to describe its construction and operation.

I construct my helical passages in any of the known forms; but in orderto conine the fluid within the machine, I affix thereto the drum-headsa, b, by any appropriate mechanical arrangement. These drum-heads haveeach an aperture 0 d; c is designed for the ingress of the air, CZ foregression ot' of the same when compressed. The elbow e connected withthe conduct-pipe f, with which it has a tree communication, is supportedby journals on the bearings g g, and made stationary by the shaft 7Lbeing firmlylastened to the frame work upon which the machine rests,-its bottom z' being open and always below the mark of the fluid,preserves a free communication between the extremes.

of the machine, thereby enabling the fluid to seek an equilibrium at alltimes. In connection with the conduct-pipe or the elbow e, or bot-htogether, is athxed one part of the valve or slip-joint y' while theother part is attached to the inner cylinder 7c. This joint being airtight, -prevents the compressed air from returning through the innercylinder; it may be made of any metallic substance ground air V`tight,or packed and rendered air tight by the application of leather or othermaterial. The aperture CZ in drumhead b may be omitted,-in which case atube is necessary by which the compressed air may be conducted throughthe top of the elbow enthence through the center of the machine and outat the aperture c, which pipe being iirmly fas-tened to the frame uponwhich the machine rests, may subserve the purpose of the shaft 7L.

The operation of my improved rotary blast generator is as follows:Motion being imparted to the machine, the water or other Huid dischargedthrough the helical passages, will, being acted upon by the law ofgravity and the direct action of the compressed air, readily return fromwhence it came, by means of the conduct-pipe f, while the compressed airwill be discharged through the aperture (Z, or in case of that aperturebeing omitted, through a tube emerging from the aperture c.

Having thus fully described my improved rotary blast generator, what Iclaim as my invention and desire to secure by Letters Patent, is-

The-combination and arrangement of the drum-heads a b, t-he valve orslip-joint j, and the conduct-pipe f with the elbow e. substantially inthe manner and for the purpose herein set forth.

CHAS. C. LLOYD.

lVitnesses present:

JOHN A. IVHrrE, THos, G. RUTHERFORD.

